Folding-machine.



Patented Deo. 22, 15H4.

4 SHEETS SHEET l.

FODING MACHIN E, LAUTENSGHLGER.

APPLICATION EIL-BD FEB.12,1914.

W. F. LAUTENSCHLAGBR.

FOLDING MACHINE. APPLloATIoN FILED FBB.12. 1914.

Patented Deo. 22, 1914.

4 SHEETS-SHEET 2,

N NN

W.4 E. LUTENSCHLAGBR.

FOLDING MACHIN.

APPLICATION FILED EB.12, 19N. l Patented. Dec. 22, 1914.

afi"

W. E. LAUTBNSGHLAGER.

FQLDING MACHINE.

APPLICATIQN FILED H2B. 12, m4.

Patented Dec. 22, .1914.

i SHEETS-SHEET 4 canton.

WILLIAM F. LAUTENSCHLGEB, GF CINCINNAE,.,OHIO.

FOLDING-MACHENE.

Speccaton of Letters Eatent.

patented Dec. 22, 18rd.

Application led. February l2, wie. Serial Ho. 818,250.

' Machines, of which thefollowingis a speciimirgin being 'folded .crosswisc oi the width ol' the margin being cation.

My invention relates to folding machines applicable for folding the edges of flexible material, such as leather, cloth or the like. y

It is the object of my invention to provide novel means' in a machine of the character mentioned, whereby strain tending to stretch the curling edge of the material at the folder. fold-presser engagedaduring the curling of the material in the', formation of a fold is avoided or minimized and the normal length of the curl formed in the formation of the folding is reduced; further to provide novel means whereby the edge of the material is maintained in guided relation with a` gage; further to provide novel means whercby a reverse curl is imparted to the edge of the material in advance of the upward curl formed by the folder, whereby the guided edge or' the material is depressed into range with the gage; further to providea Atoldpresser so gin being folded with a forward pressing iace extending selectively recedingljY or substantially directly crosswise of the margin being pressed vwhen in told-pressing relation; 'further to provide a toldpresser having an initial pressing portion o` the margin ot the material being folded shiftable under the control ot' the operator while the material is being folded ior presenting said initial pressing portion to thc in di [i'erent directions i"ohlod with relation to' the direction or the 'feeding movement when in fold-pressing position: further to provide novel means for manuallj.v shitting the reciprocating initial pressing portion oi' the AMld-presser during the Folding movement oif the material through the machine: 'foi-ther. to provid(l novel means for manuallv adjusting the limit oiLl movement ol said initial pressing portion of the 'fold-presser during the operation ol tac machine: and. further. to provide novel means i'or adinstahly locating the path arranged as to press the mar of reciprocating movement oi the reciprocating forward fold-pressing portion of the fold-presser.

. rlhe invention will be further readilv nnderstood from the following description and claims, and from the drawings, in which latter:

Fig. l is a side eleijation of my improved device. Fig. 2 is a front end elevation of the same. Fig. 3 is a rear end elevation of the same. Fig. i is a vertical cross-section taken on the line i-l of Fig. l, showing the driving connections for the oscillating knife and fold-presser. Fifi'. 5 is a bottom view of the l head-end of the bed. l41 ig. o is a plan view of the operating mechanism at the head-end ci the machine, with the over-hanging bracket removed and the presser-foot post and feeding foot stem broken away. Fig. 7 is a similar view showing a piece of material with a str: ight edge being ted through the machine and folded, the movable fold-presser portion being in retracted position. Fig. S is a similar view showing a piece of material with a concave edge being ted through the machine. l `ig. i) is a similar view, showing a piece of material with a convex edge vbeing ted through the machine, with the mor-able portion ot' the fold-presser in advancediposition. Fig. l0 is a similar but enlarged view, partly broken away, showing a piece of material with a straight edge being fed through the machine, and showing the inovable portion oi the fold-presser in raised relation and in retracted position and the cnil portion of the fold being made when sai'd movable portion .is in retracted position, in full lines, and indicating in dotted lines the relations which the forward wall' oi the movable -`portion of the curl portion oi' the fold would assume it said forward wall of said movable portion were advanced inniolding straight oder@ material and indicating the bange in rdlation 'which the curl' portion or the iold woilld assume with relation to thc gage. lfig. lil is a vertical section, parallel tothe line oiit'ecd, taken on the line ll-ll Aolf lfig. lll. indicating the action ot' the feeding and 'folding di vices on the material. and the lay given to the margin ot' thcl material hy the raised portion ci' thil material support. Fig. l2 is a Vertical section of the same, taken on thc Jfold-presser and -the` Cil line 12--12 of Fig. 10wihthhthe feeding foot in raised position. Fig. 13 is a cross-section of the same, taken on the line 13-13 of Fig. 10. Fig. 14 is a detail of the controlling mechanism for the adjustable portion of the foldpresser, taken on the line 14-14 of Fig. 9. IFi 15 is a botton view of the fold-pressing portion of the fold-presser, with the movable part thereof in advanced position; and, Fig. 16 is a rear elevation of the same.

In the present exemplification, the folding machine comprises feeding means for the material, exemplified as a feeding foot Q1 coperating with. :hroller 22, a presserfoot k23 adapted to 4old the material in place between feeding movements, cutting or snipping means adapted to fprovide the edge of the material being olded with cross-cuts or snips when such cutting or shipping is desired and comprising an upper cutter 24 and a lower cutter 25, a folder 26 adapted to curl upwardly the ymargin to be folded, and a fold-presser 27 adapted to press the folded margin toward the body of the material, the ed e of the material being fed against a suitab e gage 28.

31 represents the frame of the machine,

which comprises an overhang'ing arm'- 32, preferably forming a so-ealled goose-neck frame, having a head 33.

The feding-footis arranged to be moved downwardly and forwardly for thefeeding movement and upwardly and rearwardly for the retracting movement, for-intermittently feeding the material. The roller 22 is rotatable about a pivot-screw 34 secured to the table-portion 35 of the' frame. The presser-foot is arranged.to bear upon the material being fed through the machine during the retracting movements of the feeding foot, and the resser-foot is arranged to be held in raisedp position during the feeding movement of the material. Suitable means are provided for operatingthe feedingfoot and the presser-foot, eX-

enipliied as follows: 36 is a drive-shaft joui-nailed in bearingsl 37, 38, of the main frame. It has suitable driving means thereon, shown as a pulley 39. v41 and 42 are rock-shafts. A lever 43 is pivoted on a stud 44 to the main frame. provided with an eccentric 45 which cooperates with the walls of a coacting cambloek 46 on the lever. The leverconiprises an arm 47 fwhieh is articulated at 48 with a link 49, articulated at 50 with an arm 51 on a hub 52'ioekable about the rock-shaft 4l' and provided with a segment-gear 53'i'neshing with a. segment-gear 54 fast on the rockt 42. The articulation 48 is adjustable :.iwise of the slot 55 for varying the extent of rocking-inmement of the arm 51, and consequently varying the lengths of steps of the feeding-foot. The rock-shaft The drive-shaft is i 42 further has a segment-gear 57 fast v,on its forward end, which meshes with a .rack 58 fast on a slide-frame 59 for the feeding-foot, slidable laterally on guide-rods 60 fastin 4the head of the frame.

The feeding-foot 21 is on a stem vlvwhich reciprocates up and down in bearings 62 in the slide-frame 59. The stem has a guide lrack-bar 69 meshes, the rack-bar being guided in a bearing 70 of the main frame and by a slot 71 through which the driveshaft is received. A 'cam 72 is fast on the drive-shaft and eoperates with a roller 73 on the rack-bar. A spring 74 is received about the rack-bar between the bearing 70 and a collar 75 'secured tothe rack-bar.

The spring 74 causes depression of the rack-bar and coaction between the roller 73 and the cam 72 for causing longitudinal movement of the rack-bar and consequent rocking movement of the rock-shaft 41, which causes a gradual rising movement of the feeding-foot during the retraeting move ment thereof, caused by the eceentric-por tion 76, and a comparatively rapid descent of the feeding-foot at the end oflsaid retraeting movement, caused by the eccentricportion 77, the feeding movement taking placev while the concentric-portion 7 8 coacts with the roller. The spring causes yielding movement of the feeding-foot toward the material and permits yielding movement of the feeding-foot due to inequalities in the thickness of the material being fed through the machine. n

The presserffoot is exemplified as mounted on a forwardly extending arm 81 rigidly secured to a reciprocating post 82 reciprocating in bearin'gs 83, 84, in the ma n frame.

The post is held against rotation y means of a positioning screw 85, threaded into the bearing 84, the inner end of the screw being received in a slotl 86 extending lengthwise of the post 82. A spring 87 received about the post between the beai'ingSB and a collar 88 secured to the post, causes yielding pressure of the presser-foot toward the material. The rock-shaft 4l is provided with atappetarm 89 fast thereon, arranged to engage a collar 90 on the post 82, adjustably clamped on the post, fior intern'iittently raisingytlie presser-foot during the operation of the mal chine.

For manually raising the presser-foot a lever 91 is provided, pivoted to the bearing l 84 on a screw 92 and having a knob 93 91. e shown as a folding-block to 'ene table ofthe machine by means of suite, ble screw 96.

, The upuer cutter 2 coacts with the lower cutter 2-1 being shown 'as a ged to be adjustably se- 66 by means of a clampeived through a slot in the l threaded into the lever. er comprises a hub 106, in the about a cross-shaft 107, 106, in the table, an

i a bearing rings arni '11 with which driving connechad roi' operating the lever.

' .eltl-piesser Q7 is on a told-presser lever 116 is exemplified, the fold-presser ei r comprises a hub 117, in the forni of a e ng; about a cross-shaft 116, received in eeafings 119, in the table, an arin 121, and arrn 122 with which drive-connection is 'formed for operating the told-presser. i

1 have exemplified the knife-lever and 'oltbpresser lever actuated by means of eccentrica on the drive-shaft. rhus the il '1t is provided with an eccentric 126 i a which an eccentric strap 127 is re- 11. -link 12S extends Jironi this strap s a ball and socket connection 129 e .fili the knife lever. The drive-shaft is also provided with an eccentric 131 about which 1532 is received. A slide-frame received about the bearing and has slideection therewith, as by means of screws tnreaded into the side walls of the slideine and received slidingly in slots 135 of the ea ing 132. link 136 extends from *le cle-traue and has ball and strap conce' n 13T -with the :told-presser lever, erl a ball and socket joint. rl`his link j be in' the forni oli an adjusting screw readetl into a threaded socket 13S in the slide-traine and held in adjusted positions by ineens of a lock-nut 139.

The pressing force ot thel eccentric. 131

upon the toldpresscr is imparted through tra rnediuni ot a spring 110 between the and the ond wall 1h11 of the me, so that the pressure exerted by ve fold-presser upon the ifolded margin ay be a yielding pressure for. permitting e told-pressfr to yield to inequalities in niaterial and to exert a yielding pressure old tor pr sing' the told.

cutter is shown in the forni of n which is movable toward and lroi the upper cnt. br placing the lower cutter into coactin elution with the upper cnt during which relation a snipping or c t ot the etgf o'i the material will be each oscillating movement et the ch the cutterblade is secured,

upper cutter, as when 'folding concave curves, (see Fig. 8), or for placing the lower cutter in inactive relation with relation to a plate 147. The cutter-block' is adjustably' clamped to the slide b v means of a screw 148 received through a slot 149 in the cutterI block and threaded into the slide. The plate is provided with lugs 151, 152, between which a crank-pin 153 is received, the crank-pin being mounted on a rockenpart 154, journaled by a stud 155 in a lug 150 'of the table. l

An arm 156 is rigid on the rock-shaft and has a link 157 articulated therewith. A spring 15S is received about the link between a bearing 159 throughwhich the link passes, and a collar 160 on said link. A. suitable connection, as a rod 161, connects the link with a suitable treadle, indicated at 162, :tor shifting the cutter-block into inoperative relation during the operation, of the machine and the feeding of the material through the machine. The nlate 111'? is arranged to c0n tacta set-screwil, for defining the cutting s relation of the cutter-block to the upper knife. The set-screw is adjustably positioned in a lug 166 of the table and held in adjusted position by a clamp-nut 167.

1 have found that in progressively tolding the margin of flexible material, such as leather, cloth or the like, it is desirable to avoid a stretching strain upon the edge of the leather being curled, and for this purpose 1 have provided the material support with a raised portion, located in advance of the materiahsupporting faces coacting with the fold-forining means, so as to provide the margin o the material with a reverse curl or fold, as indicated at 168, (see Figs. 7, 8, 9, 10 and 11), in advance of the .flexing or upwardly folding or turning margin of the material, indicated at 169, whereby the guided portion 170 of the edge of the 1na terial is retlexed or curled or arranged downwardly :trom the flexed or upwardly turned edge of the folding margin into coaction with the side gagewhich is located closely adjacent to the fold-forming instru- Inentalities, and an upward bulge 171 is formed in the. material adiacent to its edge.

rl`he side gage 9.8 in the present exempliiication extends from a plate 172 adjustable on the table by means of a clamp-screw 173 screwed into the table through a slot 171 in the plate.

T he material-support o1 table is indicated at 176 and is shown as comprising a raised portion 177, (see Figs. Q, 6, 11 and 12),

shown in advance of that portion 178 of the material-support, shown as a depressed portion, with which the presser-foot and the fold-presser coperate and in the plane of which the feeding-foot operates. This raised portion preferably terminates at the side, adjacent to the side gage, approximately at the normal line of feed, for formlng a raisedcorner 17 9 (see Fig. 6) in rear of the fold-forming and feeding devices and at the side of the gage. This side edge df the raised portion is approximately in line with the bend 164 in the material at which tldie margin is folded when folding astraight e ge.

A. finger 180 is provided, which is arranged to project over the reversely curled art of the margin of the material being olded, for forming a channel thereunder through which the material may pass, and guarding against an accidental up-turning of the edge of the material at the gage. This finger is shown onthe presser-foot and is shown secured thereto vby means of a clamp-screw 175 threaded into the presserfoot land received through a slot in -the finger.

he'lower cutter-block preferably forms a material-support for the margin of the material being folded at the side of the raised portion of the material-support, and :'s preferably higher than the depressed portion of said material-support and lower than said raised portion. Its cutting edge is preferably in rear of the transverse vertical plane' 1n which said raised portion of the materialsupport is located, so that the edge of the material is arranged at said cutting edge of the cutter-block in a plane parallel to the bodyof the material for being acted on by the upper cutter-blade, while in said plane, as indicated in Fig. `13.

The retraction of the cutter-block permits the ready Hexing of the edge of the material below the horizontal plane of the cutting edge of the cutter-block for insuring that the cutter-blade may continue its oscillations thereabove without cutting or snipping action thereof on the material.

' I prefer to form the fold-presser adjustable and so arranged as to press the margin being folded with an initial pressure face extending diagonally to the length of the margin being folded, or at substantial right angles to the length of said margin, the direction in which the initial pressure face extends being preferably under control of the operator while the margin is being folded and determined by the shape of the edge of the margin being folded. For accomplishing this end and for aiding the fold in assuming a natural bender curl, I prefer to provide the fold-presser with a receding forward pressing wall for the margin being folded for lpermitting the fold to be partly formed across the end of the fold-presser 1n the plane of movement of the foldpresser. This relation of the forward pressmg face or wall of the fold-presser is employed when folding material -having a straight edge (see Figs. 7, 10 and 11), or a concavely curved edge, (see 8).

.When folding material having an edge with a convex curve, (see Fig. 9), the upwardly curling portion of the Iold being made shortened, for the reason that the edge 1s outwardly ,roundedi and the fold takes place along a more obtuse angle with relation to said edge. For folding such convex edges it is desirable thatlt'heforward pressing face. of the' fold-presser be advanced for presenting said forward pressing face more nearly in a-direction at right angles to the lineof feed, and bringing said forward pressing face into more intimate range with, the old being made.` The desireddegree of the an le of presentation of the forward ressing ace is determined by the degree o convesity of the. edge of the material bein folded. The shorter the radius on whic the curve is described the more nearly at right angles to the normal linev of feed' should the forward pressing face of the fold-presser be presented. I have provided means whereby this adjustment can be effected momentarily by the operator during the formation of the fold.` In the` present exemplifieation I have also provided means whereby the amount of movement of the pressing edge of the fold-presser is adjusted, and 'have provided means whereby this adjustment may be accomplished by the operator either during the operation of the machine or while the machine is at rest, and have further provided means whereby the path, in which the said pressing edge reciprocates, is adjustably fixed, although I do not limit myself to the means herein shown for effecting these purposes.

In the present exemplification the foldpresser comprises a body and a movable part 181 arranged to swing on the body of the fold-presser for presenting its forward wall crosswise of the plane of the edge being folded or presenting said forward pressing wall at various angles with relation to vthe line of feed across said edge being part oo prises a wall 182 from the upper end of vhiclr a lever 183 extends, a pivotscrew 18A being received through said lever and threaded into the body 185 of the foldpresser, the movable part being pivoted about said pivot-screw. A shelf 186 extends from the lower end of the wall 182 under the body of thefold-presser and is preferablyv received in a recess 187 inthe bottoni of said body and has a guiding edge 188 formed on the arc of a circle described from the axis of said pivot-screw 184.- as a center,

foldedIm the form shown this movable einem =w`nich coasts with a 'similarly arced edge 189 of the recess 187. The body of the foldpresser is formed with a projection 19,0 received above theshelf '18d-and arranged to press upon the shelf'which in turn presses upon the' margin being folded' for pressing the folded margin against the body of the piece. of material. The wall 182 is provided with arear face 191 with which a face 192 of the extension 190 coacts for locating the said movable part of the-fold-presser in retracted relation, which in they present exemplication is the normal relation of said movable part. The wall 182 is arranged to swing forwardly so that its forward or initial pressing edge for the margin being folded is at substantial right angles to the normal path of feed of the material. For

`determining this relation, I prefer to provide the movable part with a shoulder 197 which eoacts with a shoulder 198 on the body ofthe fold-presser.

' ln order to insure that the movable part of the fold-presser shall press upon the innery edge of the fold being made along a straight edge when forming a comparatively 'wide fold, and to further insure that said movable part sha-ll'contact said inner edge when forming convex curves on short radii, l prefer to provide the movable part of the fold-presser with a laterally extending nose 199, whereby l find l am enabled to increase the degree of recession of the initial press ing face of the movable part.

For manipulating the movable part of the fold-presser .l have exemplii'ied the following instrumentalities, namely: 'An arm 201 has articulated connection with the movable part of the 'foldpresseiz As shown the armt 201 is provided withaslo't 202 by the walls of which a pin 203 on the lever 183 is guided and moved. Tylie arm 201 is part of a lever 201 pivoted on a pivot-screw 205threaded into a shelf 20G offabearing 20'4- clamped about a stud 20S secured in a bearing 209 dependingrom the head ofv the goose-neck' of the frame. This lever swings readily about its pivot and is arranged to be readily manually manipulated, this being shown'accomplished by manipulation by the thumb, linger orhand, by means of a push-portion 210 thereof formed by bending the forward end of the lever upwardly. rl`he, lever is normally pressed by a spring 211 in a direction for causing retraction of the movable part of thepfoldfpresser. Means are provided for adjusting the extent of this retraetive movement or for fixing the path of the initial pressing edge of the movable part in' advanced position, accomplished in the 'present exempliiioation by an arm 214 piv.

oted about a pivot-screw 215 threaded into the bracket 206 and frietionally held in adjusted posit-ions by means of a frictionwasher 216, this ,washer form shown being providedwith a iinger'217 in which.

about a hook 218 formed in the push-portion 210 of the lever 204. The arm 21sL is held in the position to which it may be adjusted about the axis of the pivot-screwy 215 by means of the friction-washer 216 sufliciently rigid to prevent its displacementby Ahe retractive movement of the spring, and

the friction-washer is held in its place by means of a flat edge 219 thereof received against the bearing 207.

For readily positioning the arm 214 it is provided with a manipulating part 220, shown as an upturned front end thereof, forming a push-plate or handle, which is readily grasped by the thumb or inger or pushed bythe finger or thumb in either direction by the operator during the opera` tion of the Amawchineor while: the machine is at rest, for adjustably positioning thel same about its aXis, so asvto adjustably limit theextent of retractive movement of the arm 201, for adjusting the limit of retractive movement of the movable part 181 of the fold-presser, or for positioning said movable part in extreme forward position, the reciproeations of the latter in the fold-pressing operation then taking place in this latter position. The arm 214and lever 204 are respectively provided with coacting contact- Vparte 221, 222. If desired, the arm 214 may face kof the fold-.presser as a normally re-V treating face, arranged to be changed by the operator to a forward pressing face at subj stantial right angles to the line of feed, it -is of course obvious that the forwardpressing face may normally be extended at substantial right angles to the line of feed and arranged to be changed by the operator to a retreating forward pressing face, without departing rom the spirit of my invention.v

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, is: V

1. A folding machine of the character de'- scribed comprising in combination' means for progressively -feeding the material, a fold-presser, and means comprising shifting means for selectively presenting a forward fold-prssingface of said fold-presser in ra plane parallelA to the face of the 'pressed- Iscribed comprising in combination means for progressively feeding the material, a

fold-presser, and means under the control of the operator durini'g the rogressive feeding of the material or se ectively presenting a yforward fold-pressing face of said fold-presser crosswise of the fold being pressed so as to retreat in the direction of the feeding movement or presenting a forward fold-pressing face of said fold-presser in a direction more nearly directly across the width of said fold being pressed when in foldressing relation.

3. A olding machine of thecharacter described comprising in combination means for progressively feeding the material, a fold-presser, means for reciprocating said fold-presser, and means comprising shifting means for selectively locating a forward fold-,pressing face of said fold-presser cross-.. wise of the fold being ressed so as to retreat in the direction o the feeding movement or locating a forward fold-pressing face of said 4fold-presser in a direction more nearly directly across the width of said fold being pressedv when in fold-pressing relation, and adjusting means for said shifting means. a

4. A folding machine of the characterdescribed comprising in combination means for progressively feeding the material, a fold-presser, means for reciprocating said fold-presser, and means comprising shifting means for selectively locating a forward fold-pressing portion of said fold-presser crosswise of the fold being pressed so as to retreat'in the direction of the feeding movement or locating a forward fold-pressing portion of said fold-presser` in a direction more nearly directly across the width of said fold being pressed when in foldpressing relation, and adjusting means under the control of the operator during the progressive feeding of thefmaterial for fixing the path .of reciprocating movement of the forward fold-pressing face.

5. A f lding machine of the character described comprising in combination means for progressively feeding the material, foldturning means, a fold-presser, and means comprising shifting means for selectively locating a forward fold-pressing portion of said fold-presser crosswise of the fold being pressed so as to retreat in the directionof the feeding movement or presenting a forward fo1d-pressing .portion of said foldpresser in a direction more nearly directly across the width of said fold being pressed when in fold-pressing relation, a ymateriala material-supporting part elevated abovey said material-support 1n advance' of said .fold-turning means, fold-presser and feed- 1 lng means for reversely curling the edge of the fold being formed by saidfold-turning means.

6. A folding machine of the character described comprising in combination means for progressively feeding the material, 'a fold-presser, a material-support coacting with said fold-presser. and feeding means, an elevated material-supporting part in advance of said first-named material-support, and means for presenting a forward foldpressing portion of said fold-presser in rear of said raised material-supporting part selectively receding in the direction 'of the feeding movement crosswise of the fold being pressed or in a direction more nearly directly across the width of the fold being pressedwlien in fold-pressing relation. Y

y 7. "A folding machine of the character de-A scribed comprising in combination means im' progressiyely feeding the material, a fld-presser, a material-support coacting with said fold-presserJ and feeding means, an elevated material-supporting part in advanceof said first-named material-support, and means arranged to becontrolled bythe operator during the progressive feeding of the material for presenting a forward foldpressing portion of saidvfold-prcsser in rear' of said raised material-supporting part Selectively receding in the direction of the feeding movement crosswise of the fold being pressed or in a directionmore nearly directly across the widthv of the fold being pressed when in fold-pressing relationjf- 8. A folding machine of the characterdescribed comprising in combinationl means for progressively feeding rthe material', a

folder for imparting an upward curl t9.. the edge of the material, a fold-presser, a material-support coacting with said leiding" `means, folder and fold-presser, a sid' age for the edge of the material being fe lcated in advance of said folder, and an elevated 4materialsupporting part in'advance of said first-named material-support for reversely curling and thereby deflectingsaid edge toward said side-gage.

-9. A folding machine of the character described comprising in combination means for progressively feeding the material, a folder for imparting an upward curl to the edge of the material, a fold-presser, a material-sunnort coacting with said feeding means, folder and fold-presser, a side-gage for the edge of the material being fed lo-' cated in advance of said folder, an elevated material-supporting part in advance of said first-named material-support for reversely curling and thereby delecting said edge to- Y plane df the described, the combination' of progressively acting feeding v.means for the materlal, a reciprocating fold-pressingV part having a forlwardfold-pressing face and a pivotal axis ciprocating fold-presser having a forward fold-pressing face and a pivotal axis which is substantially perpendicular to the plane of the pressed marginof the material when said fold-presser is in pressing position for presenting said forward fold-pressing face selectively in a plurality of directions crosswise ofsaid pressed margin, and means under the control of the operator during the feeding movements of the material for shifting saidfold-pressing part about its pivot, said last-named means including resilient means tending to normally move said fold-pressingV part to one' limit of its shifting movement.

20. In a folding machine of the character described, the combination of progressively acting feeding means for the material, a reciprocating fold-pressing part having a forward fold-pressing face and a pivotal axis which is substantially perpendicular to the plane of the pressed margin of the material,

when said fold-pressing part is 1n pressing position for. presenting said forward foldpressing face selectively in a plurality of directions crosswise of said pressed margin, means under the control of the operator .during the feeding movements of the material for shifting said fold-pressing part about its pivot, said` last-named means includmg .resilient means tending to normally move said fold-pressing part to one -limit of its shifting-movement, and adjusting means for adjusting said last-named limitiof movement.

2l. In a folding machine of the character described, the combination of progressively acting feeding means for the material, a reciprocating fold-pressing part having a forward fold-pressing face and a pivotal axis which is substantially perpendicular to the plane of the pressed margin of the material when said fold-pressing part is in pressing position for presenting said forward fold-pressing face selectively in a plu-v 4 rality of directions crosswise of'said pressed margin, means under the control of the operator` during theifeeding movements of the material for shifting said'fold-pressing part about its pivot, said vlast-named means in. cluding resilient means tending to normally move said fold-pressing part to one limit of its shifting movement, and means underthe control of the operator during the feeding movements of the material for adjusting said last-named limit of movement.

22. In a folding machine of the character described, -the combination of progressively acting feeding means for the. material, a reciprocating fold-pressing part having a forwardfoldfpressing'face and a pivotal axis which is substantially perpendicular to the plane of the pressedmargin of the material when said fold-pressing part is in pressxn position for presentin said forward fol pressing facey selective y in a plurality of directions crosswise of said pressed margin, and means under the control of the o erator during the feeding movements of t e material for shifting saidv fold-pressing part about its pivot, said last-named means 1ncluding resilient means tending to normally l move said fold-presser yto one limit of its shifting movement, and adjustin means for positioning said reciprocating old-presser in a path adjacent to its other limit of shifting movement.

23. In a folding machine of the character described, the combination of progressively acting feeding means for the material, a reciprocating fold-pressing part\havi'ng a forward fold-pressing face and a pivotal axis which is substantially perpendicular to the plane of the pressed margin of the material `when said fold-pressing part is in pressing position for presenting said forward foldpressing -face selectively in a plurality of directions crosswisey of said pressed margin, means under the control of the operator d ring the feeding movements of the matef'lial for shifting said fold-pressing part` about its pivot, and edge shipping means adapted for shipping the edge being folded when said fold-pressing part is adjacent to its rearward limit of shifting movement.

24. In a folding machine of the character described, the combination of progressively acting feeding means and margin-folding means for the material, a reciprocating foldpresser comprising 'avbodv and a part having a forward fold-pressingeface shiftably mounted on said body, said part being provided With a shelf received under said body adapted to be pressed by said body upon the margin being folded, and means under the controlof the operator during the feeding of the material for shifting said movable part.

25.#Ig a folding machine of the character described, the combination of acting'feeding means and margin-folding vmeans for the material, a reciprocating fold-presser comprising a body-and a. part progressively `having a forward fold-pressing face shiftv abl? mounted on said body, and means un er fold being pressed so as to retreat-in the direction of the eedin movement or pre sentlng a forward fol -pressing face in a l0 direction more nearly directly across the width of said fold being pressed when in 4fold-pressing relation.

In testimony whereof, I have hereunto signed my name, in thepresence of two subscribing witnesses.

WILLIAM F. LAU'IENSCHLAGEB..

Witnesses:

CHARLES E. WEBER, THX-:RESA M. Sinnen. 

